128
CDUS44 KMRX 130821
CLITRI
CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
321 AM EST SAT DEC 13 2025
...............................
..THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR DECEMBER 12 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1937 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 39 4:33 PM 75 1949 50 -11 43
MINIMUM 27 11:51 PM -5 1962 30 -3 24
AVERAGE 33 40 -7 34
PRECIPITATION (IN)
YESTERDAY 0.05 1.11 1956 0.13 -0.08 0.00
MONTH TO DATE 1.28 1.55 -0.27 1.22
SINCE DEC 1 1.28 1.55 -0.27 1.22
SINCE JAN 1 43.72 41.76 1.96 41.19
SNOWFALL (IN)
YESTERDAY 0.3 0.1 0.2 0.0
MONTH TO DATE 0.5 0.6 -0.1 1.1
SINCE DEC 1 0.5 0.6 -0.1 1.1
SINCE JUL 1 1.0 0.9 0.1 1.5
SNOW DEPTH T
DEGREE DAYS
HEATING
YESTERDAY 32 25 7 31
MONTH TO DATE 347 288 59 340
SINCE DEC 1 347 288 59 340
SINCE JUL 1 1157 1141 16 967
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1154 1104 50 1348
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WIND (MPH)
HIGHEST WIND SPEED 6 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 8 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 0.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 8:00 PM
LOWEST 79 4:00 PM
AVERAGE 90
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THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 50 72 2015
MINIMUM TEMPERATURE (F) 30 -9 1962
SUNRISE AND SUNSET
DECEMBER 13 2025......SUNRISE 7:33 AM EST SUNSET 5:15 PM EST
DECEMBER 14 2025......SUNRISE 7:34 AM EST SUNSET 5:15 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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